Strong’s Greek
G70 — agrupnia
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀγρυπνία
agrupnia — pronounced ag-roop-nee'-ah
from 69; sleeplessness, i.e. a keeping awake:--watch. see GREEK for 69
2 occurrences in the KJV.
2 Corinthians 6:5
In stripes, in imprisonments, in tumults, in labours, in watchings, in fastings;
2 Corinthians 11:27
In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.